MY126065A - Adaptive channel equalizer. - Google Patents

Adaptive channel equalizer.

Info

Publication number
MY126065A
MY126065A MYPI20005966A MYPI20005966A MY126065A MY 126065 A MY126065 A MY 126065A MY PI20005966 A MYPI20005966 A MY PI20005966A MY PI20005966 A MYPI20005966 A MY PI20005966A MY 126065 A MY126065 A MY 126065A
Authority
MY
Malaysia
Prior art keywords
error rate
equalizer
packet error
reed
step size
Prior art date
Application number
MYPI20005966A
Inventor
Aaron Reel Bouillet
Matthew Thomas Mayer
John Sidney Stewart
Original Assignee
Thomson Licensing Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of MY126065A publication Critical patent/MY126065A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03382—Single of vestigal sideband
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • H04L2025/0363—Feature restoration, e.g. constant modulus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03681—Control of adaptation
    • H04L2025/03687—Control of adaptation of step size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Picture Signal Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cartons (AREA)
  • Television Systems (AREA)

Abstract

IN A RECEIVER FOR PROCESSING A VSB MODULATED SIGNAL CONTAINING TERRESTRIAL BROADCAST HIGH DEFINITION TELEVISION INFORMATION INCLUDING DATA PACKETS, THE RECEIVED SIGNAL IS CONVERTED TO A DIGITAL SIGNAL (19), DEMODULATED (22) AND EQUALIZED BY AN ADAPTIVE CHANNEL EQUALIZER (34). AN EQUALIZED SIGNAL IS PROCESSED BY DECODING NETWORKS INCLUDING A REED-SOLOMON FEC ERROR DETECTING AND CORRECTING NETWORK (44). THE EQUALIZER FILTER COEFFICIENT STEP SIZE IS DYNAMICALLY ADJUSTED DURING THE ADAPTION PROCESS AS A FUNCTION OF THE PACKET ERROR RATE. A LOCAL MICROCONTROLLER (60) MONITORS THE PACKET ERROR RATE AT THE REED-SOLOMON ERROR DETECTOR AND INSTRUCTS THE EQUALIZER TO ADJUST THE COEFFICIENT STEP SIZE IN A DIRECTION TO REDUCE THE PACKET ERROR RATE.
MYPI20005966A 2000-05-05 2000-12-20 Adaptive channel equalizer. MY126065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/566,159 US6490007B1 (en) 1999-07-14 2000-05-05 Adaptive channel equalizer

Publications (1)

Publication Number Publication Date
MY126065A true MY126065A (en) 2006-09-29

Family

ID=24261750

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20005966A MY126065A (en) 2000-05-05 2000-12-20 Adaptive channel equalizer.

Country Status (7)

Country Link
US (1) US6490007B1 (en)
EP (1) EP1152602B1 (en)
JP (2) JPH06508805A (en)
KR (1) KR100666432B1 (en)
CN (1) CN1224227C (en)
MX (1) MXPA01000725A (en)
MY (1) MY126065A (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7298774B2 (en) * 2000-08-25 2007-11-20 Sanyo Electric Co., Ltd. Adaptive array device, adaptive array method and program
US7072392B2 (en) * 2000-11-13 2006-07-04 Micronas Semiconductors, Inc. Equalizer for time domain signal processing
US6715113B1 (en) * 2000-12-22 2004-03-30 Applied Micro Circuits Corporation Feedback system and method for optimizing the reception of multidimensional digital frame structure communications
US6940557B2 (en) 2001-02-08 2005-09-06 Micronas Semiconductors, Inc. Adaptive interlace-to-progressive scan conversion algorithm
US6829297B2 (en) * 2001-06-06 2004-12-07 Micronas Semiconductors, Inc. Adaptive equalizer having a variable step size influenced by output from a trellis decoder
US7190744B2 (en) * 2001-06-07 2007-03-13 Micronas Semiconductors, Inc. Error generation for adaptive equalizer
US7418034B2 (en) * 2001-06-19 2008-08-26 Micronas Semiconductors. Inc. Combined trellis decoder and decision feedback equalizer
US7158567B2 (en) * 2001-09-11 2007-01-02 Vitesse Semiconductor Corporation Method and apparatus for improved high-speed FEC adaptive equalization
TW543328B (en) * 2001-12-10 2003-07-21 Silicon Integrated Sys Corp TV decoder
KR100442255B1 (en) * 2002-02-27 2004-07-30 엘지전자 주식회사 Apparatus for equalizing channel
US20030206053A1 (en) * 2002-04-04 2003-11-06 Jingsong Xia Carrier recovery for DTV receivers
US20030235259A1 (en) * 2002-04-04 2003-12-25 Jingsong Xia System and method for symbol clock recovery
US6995617B2 (en) 2002-04-05 2006-02-07 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop
US6980059B2 (en) * 2002-04-05 2005-12-27 Micronas Semiconductors, Inc. Data directed frequency acquisition loop that synchronizes to a received signal by using the redundancy of the data in the frequency domain
US7321642B2 (en) 2002-04-05 2008-01-22 Micronas Semiconductors, Inc. Synchronization symbol re-insertion for a decision feedback equalizer combined with a trellis decoder
US7272203B2 (en) 2002-04-05 2007-09-18 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop for decoding an offset-QAM modulated signal having a pilot
US7376181B2 (en) 2002-04-05 2008-05-20 Micronas Semiconductors, Inc. Transposed structure for a decision feedback equalizer combined with a trellis decoder
KR100451750B1 (en) * 2002-10-31 2004-10-08 엘지전자 주식회사 Equalizer for digital television receiver
US7305056B2 (en) 2003-11-18 2007-12-04 Ibiquity Digital Corporation Coherent tracking for FM in-band on-channel receivers
KR100698630B1 (en) * 2004-06-28 2007-03-21 삼성전자주식회사 Method and apparatus for auto-reporting a result of self-test
KR100603202B1 (en) * 2004-06-28 2006-07-24 삼성전자주식회사 Method and apparatus for auto selecting step size of LMS type equalizer
KR100708482B1 (en) * 2005-03-04 2007-04-18 삼성전자주식회사 Channel equalizer and method for equalizing channel
CA2562427C (en) 2005-10-05 2012-07-10 Lg Electronics Inc. A digital broadcast system and method of processing traffic information
US7804860B2 (en) 2005-10-05 2010-09-28 Lg Electronics Inc. Method of processing traffic information and digital broadcast system
US20070104263A1 (en) * 2005-11-09 2007-05-10 Chiao-Chih Chang Method for adaptively tuning an equalizer
WO2008002168A1 (en) * 2006-06-10 2008-01-03 Motorola, Inc. Stop-and-go algorithm for an equalizer using crc codes
WO2007091779A1 (en) 2006-02-10 2007-08-16 Lg Electronics Inc. Digital broadcasting receiver and method of processing data
WO2007126196A1 (en) 2006-04-29 2007-11-08 Lg Electronics Inc. Digital broadcasting system and method of processing data
WO2007136166A1 (en) 2006-05-23 2007-11-29 Lg Electronics Inc. Digital broadcasting system and method of processing data
US7873104B2 (en) 2006-10-12 2011-01-18 Lg Electronics Inc. Digital television transmitting system and receiving system and method of processing broadcasting data
US7853214B2 (en) * 2007-01-05 2010-12-14 Microtune (Texas), L.P. Dynamic multi-path detection device and method
KR101253185B1 (en) 2007-03-26 2013-04-10 엘지전자 주식회사 Digital broadcasting system and data processing method
KR101285887B1 (en) 2007-03-26 2013-07-11 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
KR101285888B1 (en) * 2007-03-30 2013-07-11 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
EP1976109A1 (en) * 2007-03-31 2008-10-01 Sony Deutschland Gmbh Demodulator, method and receiver for demodulation
KR20080090784A (en) * 2007-04-06 2008-10-09 엘지전자 주식회사 A controlling method and a receiving apparatus for electronic program information
KR101405966B1 (en) 2007-06-26 2014-06-20 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
KR101456002B1 (en) 2007-06-26 2014-11-03 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
WO2009005326A2 (en) 2007-07-04 2009-01-08 Lg Electronics Inc. Digital broadcasting system and method of processing data
US8433973B2 (en) 2007-07-04 2013-04-30 Lg Electronics Inc. Digital broadcasting system and method of processing data
KR20090012180A (en) 2007-07-28 2009-02-02 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
EP2191644A4 (en) 2007-08-24 2015-01-07 Lg Electronics Inc Digital broadcasting system and method of processing data in digital broadcasting system
WO2009028854A1 (en) 2007-08-24 2009-03-05 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
KR101556132B1 (en) * 2007-08-24 2015-09-30 엘지전자 주식회사 Digital broadcasting system and method of processing data in digital broadcasting system
CA2695548C (en) 2007-08-24 2013-10-15 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
JP5496418B2 (en) * 2011-05-10 2014-05-21 三菱電機株式会社 Adaptive equalizer, acoustic echo canceller device and active noise control device
US8923382B2 (en) * 2012-03-16 2014-12-30 Lsi Corporation Tap adaptation with a fully unrolled decision feedback equalizer
CN107682112A (en) * 2017-08-24 2018-02-09 郑州云海信息技术有限公司 A kind of control method of Ethernet data transmission

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519753B1 (en) * 1982-01-08 1986-02-21 Matra STAGE BODY PENETRATION BOMB
JP3038790B2 (en) * 1990-04-27 2000-05-08 日本電気株式会社 Equalizer
US5243624A (en) * 1991-07-26 1993-09-07 General Instrument Corporation Method and apparatus for updating coefficients in a complex adaptive equalizer
JPH0775099A (en) * 1993-05-07 1995-03-17 Philips Electron Nv Transmission method, transmitter and receiver for transmitting multiplex orthogonal-amplitude-modulation type television
KR0145439B1 (en) * 1994-06-14 1998-07-15 김광호 Adaptive equalizer for hdtv
US5910960A (en) * 1995-06-07 1999-06-08 Discovision Associates Signal processing apparatus and method
JPH09135279A (en) * 1995-11-08 1997-05-20 Hitachi Ltd Demodulator
JPH10163934A (en) * 1996-12-03 1998-06-19 Matsushita Electric Ind Co Ltd Reception device
JPH11122312A (en) * 1997-10-17 1999-04-30 Mitsubishi Electric Corp Digital modulator, digital demodulator, digital modem, digital modulating method, digital demodulating method and digital modulating/demodulating method
US6233295B1 (en) * 1998-08-26 2001-05-15 Thomson Licensing S.A. Segment sync recovery network for an HDTV receiver
US5940454A (en) * 1997-12-17 1999-08-17 Nortel Networks Corporation Blind switch diversity control apparatus
US6307595B1 (en) * 1998-01-13 2001-10-23 Samsung Electronics Co., Ltd. NTSC/DTV reception apparatus automatically conditioned for NTSC signal reception responsive to 4.5 MHz intercarrier
US6222592B1 (en) * 1998-01-13 2001-04-24 Samsung Electronics Co., Ltd. TV receiver equalizer storing channel characterizations for each TV channel between times of reception therefrom
SG85096A1 (en) * 1998-02-11 2001-12-19 Samsung Electronics Co Ltd Decimation of baseband dtv signals prior to channel equalization in digital television signal receivers
JP3230482B2 (en) * 1998-03-13 2001-11-19 日本電気株式会社 Adaptive equalizer
JP2000049666A (en) * 1998-07-31 2000-02-18 Matsushita Electric Ind Co Ltd Equalizer and equalizing method
US6377312B1 (en) * 1998-08-24 2002-04-23 Samsung Electronics Co., Ltd. Adaptive fractionally spaced equalizer for received radio transmissions with digital content, such as DTV signals
US6384858B1 (en) * 1998-08-24 2002-05-07 Samsung Electronics Co., Ltd. Suppression of co-channel NTSC interference artifacts when extracting training signal for a DTV receiver equalizer
US6441843B1 (en) * 1998-08-24 2002-08-27 Samsung Electronics Co., Ltd. Suppression of effects of co-channel NTSC interference artifacts upon digital TV receiver adaptive equalizer
CN1348668A (en) * 1998-10-12 2002-05-08 艾利森电话股份有限公司 Link and radio cell adaptation in TDMA/TDD systems
US6418164B1 (en) * 1999-01-14 2002-07-09 Nxtwave Communications, Inc. Adaptive equalizer with enhanced error quantization
JP3037327B1 (en) * 1999-03-16 2000-04-24 福島日本電気株式会社 Wireless communication device and transmission output control method

Also Published As

Publication number Publication date
JPH06508805A (en) 1994-10-06
EP1152602A3 (en) 2004-03-24
MXPA01000725A (en) 2002-08-06
KR20010100756A (en) 2001-11-14
JP2001320304A (en) 2001-11-16
KR100666432B1 (en) 2007-01-09
EP1152602A2 (en) 2001-11-07
CN1323140A (en) 2001-11-21
JP4688299B2 (en) 2011-05-25
US6490007B1 (en) 2002-12-03
EP1152602B1 (en) 2012-10-03
CN1224227C (en) 2005-10-19

Similar Documents

Publication Publication Date Title
MY126065A (en) Adaptive channel equalizer.
KR100659992B1 (en) Dual automatic gain control in a qam demodulator
KR100915105B1 (en) Robust reception of digital broadcast transmission
KR100360622B1 (en) MPEG Data frame structure and transmitting and receiving system using the same
Touzni et al. Enhanced 8-VSB transmission for north-american HDTV terrestrial broadcast
KR20020036786A (en) Phase noise and additive noise estimation in a qam carrier recovery circuit
JP2004519154A (en) Timing recovery circuit in QAM demodulator
JP2004522363A (en) Direct digital synthesis in QAM demodulator
US6968494B2 (en) Method and apparatus for adaptively coding a data signal
US20080030623A1 (en) Robust reception of digital broadcast transmission
KR20030010638A (en) Dual bit error rate estimation in a qam demodulator
US8046667B2 (en) Synchronization loss resilient digital communication system using forward erasure correction
US7712011B2 (en) Apparatus and method for receiving digital television signal with backward compatibility byte
US8769388B2 (en) Transport stream generating apparatus, turbo packet demultiplexing apparatus, and methods thereof
TH79043B (en) Equalizer of the channel adjustment
CA2677188C (en) Transport stream generating apparatus, turbo packet demultiplexing apparatus, and methods thereof
Karam et al. Variable symbol-rate demodulators for cable and satellite TV broadcasting
Ghosh Digital video broadcasting: cable specification
JP3380252B2 (en) Decoder device
Srinath RESCU: dynamic hybrid packet-loss recovery for video transmission over the Internet(poster session)
TH35531B (en) Equalizer of the channel adjustment.